<template>
  <div>
    <div id="statistic-time" style="width: 380px;height: 380px;float: left">

    </div>
    <div id="statistic-quality" style="width: 380px;height: 380px;float: left">

    </div>
    <div id="student-time" style="width: 380px;height: 200px;float: left">

    </div>
    <div id="student-quality" style="width: 380px;height: 200px;float: left"></div>
  </div>
</template>
